Assessment of the Impacts of Land Use Changes on Nonpoint Source Pollution Inputs Upstream of the Three Gorges Reservoir

doi:10.1155/2014/526240

	Assessment of the Impacts of Land Use Changes on Nonpoint Source Pollution Inputs Upstream of the Three Gorges Reservoir
	Yang, Huicai ; Wang, Guoqiang ; Yang, Yan 1; Xue, Baolin 2; Wu, Binbin
	2014
发表期刊	SCIENTIFIC WORLD JOURNAL
ISSN	1537-744X
摘要	In recent years, land use upstream of the Three Gorges Reservoir (TGR) has changed significantly because of the TGR project. In this study, the Soil and Water Assessment Tool (SWAT) model was examined for its ability to assess relationships between land use changes and nonpoint pollutant indexes upstream of the TGR. Results indicated that the SWAT model, calibrated with the adjusted parameters, could successfully reproduce the nonpoint indexes at the water quality monitoring sites in the two rivers. The different land use change types were shown to be sensitive to nonpoint pollutants in the study area. The land use change type from upland to water was the strongest influence on changes in total nitrogen and total phosphorus. An empirical regression equation between nonpoint indexes and different land use change types was developed for the study area by partial least squares regression (PLSR) as follows: Y = b(0) + Sigma(m)(i=1) b(i)X(i). This regression equation was useful for evaluating the influence of land use change types on changes in nonpoint pollutants over a long time period. The results from this study may be useful for the TGR management and may help to reduce nonpoint pollutant loads into downstream water bodies.
学科领域	Multidisciplinary Sciences
DOI	10.1155/2014/526240
收录类别	SCI
语种	英语
WOS关键词	UNCERTAINTY ANALYSIS ; LEAST-SQUARES ; WATER-QUALITY ; SWAT MODEL ; AREA ; REGRESSION ; CHINA ; RIVER ; SOIL
WOS研究方向	Science & Technology - Other Topics
WOS记录号	WOS:000334851400001
出版者	HINDAWI LTD
文献子类	Article
出版地	LONDON
资助机构	Beijing Higher Education Young Elite Teacher Project [YETP0275] ; Program for New Century Excellent Talents in University [NCET-12-0058] ; Fundamental Research Funds for the Central Universities [2012LZD10]
作者邮箱	wanggq@bnu.edu.cn
作品OA属性	Green Submitted, Green Published, gold
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27360
专题	植被与环境变化国家重点实验室
作者单位	1.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China 2.Gifu Univ, United Fac Agr, Gifu 5011193, Japan 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yang, Huicai,Wang, Guoqiang,Yang, Yan,et al. Assessment of the Impacts of Land Use Changes on Nonpoint Source Pollution Inputs Upstream of the Three Gorges Reservoir[J]. SCIENTIFIC WORLD JOURNAL,2014.
APA	Yang, Huicai,Wang, Guoqiang,Yang, Yan,Xue, Baolin,&Wu, Binbin.(2014).Assessment of the Impacts of Land Use Changes on Nonpoint Source Pollution Inputs Upstream of the Three Gorges Reservoir.SCIENTIFIC WORLD JOURNAL.
MLA	Yang, Huicai,et al."Assessment of the Impacts of Land Use Changes on Nonpoint Source Pollution Inputs Upstream of the Three Gorges Reservoir".SCIENTIFIC WORLD JOURNAL (2014).

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